Home / 103,647.86-155,222.64-59,139.68

Finding the Fourth Proportional to 103,647.86, 155,222.64 and 59,139.68

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Solution

The fourth proportional to 103,647.86, 155,222.64 and 59,139.68 is: 88,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,647.86 : 155,222.64 = 59,139.68 : x
  2. Step 2: Convert to fraction form
    103,647.86/155,222.64 = 59,139.68/x
  3. Step 3: Cross multiply
    103,647.86x = 155,222.64 × 59,139.68
  4. Step 4: Simplify right side
    103,647.86x = 9,179,816,482.24
  5. Step 5: Solve for x
    x = 9,179,816,482.24/103,647.86
  6. Step 6: Final answer
    x = 88,567.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.